Obregonia denegrii..

Obregonia denegrii in flower:

(images are clickables)
Enjoy.

It's really nice. Looks nice and healthy too Lewis.

Do you have many of these?

How do find growing them?

Nice plant lewis. Looks healthy too. This Genus has always fascinated me. Though I only have one very small specimen and some small seedlings .

thats great obregonias are a favourite here as well....lovely plants

Great plant lewis. Mine are still seedlings, can't wait till they mature

Awesome little plant you have there, mate. Any idea how old it it is?

KanJe: this is my only flowering size specimen.
they appear to be fairly easy to grow, just slow. sort of like Lophophoras in that aspect. even the flowers are similar to lophs. also they need SHADE. put them in the sun and they will burn to a crisp! aim for a greenish colour, see mine is pretty brown and that is even under 50% shade cloth. they grow in the shade in the wild.

Trig: thanks, the seeds of this you sent me have germinated and are coming along nicely.

Kada: agreed, lovely plants.

HN: graft!

Lachy: i guess approx 5-6 years. i've only had it a year or so. its been grown hard.
This is probably its first ever flower.

lewis wrote:

HN: graft!

I would but I have way too many little Astro's just waiting to be grafted !!! Ok you twisted my arm, I will put a stock aside and graft one.

Anyone know what stocks they like ? I think I will use Selenicereus ?

Hellonasty wrote:

Anyone know what stocks they like ? I think I will use Selenicereus ?

I haven't seen many grafts done with this species but I have seen a peri graft with multiple scions that did really well.
I think there might be an image of this plant from the last Melbourne cacti show that's been previously posted.
Here is the link if you cant find it.

Obregonia graft

Hey KanJe nice plant ! Is that a multi graft or a large plant with several heads ?

I'm not 100% but I would guess that it's multiple offsets from the one scion.

I can get back to you about it if you want.

My Obregonia denegrii f San vincente in flower yesterday.
I sowed seeds on 28/09/05 and grafted several seedlings. The photo is one of grafted plants.
Own-root seedlings are growing slowly. I still have around 30 seedlings sown same time but they are very small.
I have tried to get seeds and crossed many times but I have not got any seeds yet.

That is fantastic.

That's a very sexy plant Hanazono.
I want to get into grafting these as well.

What a beaut hanazono!

HN, sure took a lot to twist your arm lol!!! most stocks do well....not much different than other cacti....not as fast as most though.

Apart from Ariocarpus, I find this genus be the slowest cactus that I have grown so far.

Does anyone find the same thing?

Kada wrote:

HN, sure took a lot to twist your arm lol!!!

he's an addict

KanJe wrote:

Apart from Ariocarpus, I find this genus be the slowest cactus that I have grown so far.

yeah, really slow indeed.

what in find interesting is that, as far as I am aware, despite Obregonia supposedly being closely related to both Ariocarpus and Lophophora it apparently refuses to hybridise with either?

KanJe wrote:

Apart from Ariocarpus, I find this genus be the slowest cactus that I have grown so far.

Does anyone find the same thing?

Yeah my seedlings are pretty slow. I planted them with some Astrophytum, Pelecyphora and Lophophora. The Obregonias are a bit smaller than the Lophs and on par with the Pelecyphora. Still they are heaps better than the Aztekium seedlings I've got going, those buggers are slow.

lewis wrote:

Kada wrote:

HN, sure took a lot to twist your arm lol!!!

he's an addict

KanJe wrote:

Apart from Ariocarpus, I find this genus be the slowest cactus that I have grown so far.

yeah, really slow indeed.

what in find interesting is that, as far as I am aware, despite Obregonia supposedly being closely related to both Ariocarpus and Lophophora it apparently refuses to hybridise with either?

Yes I am an addict .................. I actually got around to grafting one to Pereksiopsis yesterday


I've never heard of a hybrid either lewis, worth a shot. I think Kada has a go at a X wtih Loph ??

maybe.....i'll let pics of it out when we see some progress

i agree they sure are slow though! not aztekium slow....but damn slow either way!

I think it is the best way to grow cacti seedling with own root even slow growing species but you can also grow them quickly by grafting and degrafting later.
I saw a note said "rooting of denegrii is not difficult" on the internet.
I have been attempting rooting of denegrii.
Degrafted denegrii, diameter is 9.5 cm
Using rooting hormon: yes, liquid one
Rooting medium: Shifted cat litter
I think some roots have come out from the plant in the attched photo.

be nice to see how it works for you! i have had little luck with it, but it does root eventually.

Hello Downunder,

this is flowering plant from my Collection.

Obregonia denegrii


(klick open all pics from my homepage)

Greetings from Germany

Hello blossfeldia ,just had a look at your website , nice plants an really good photography.
Kanje; Don't find Obries that slow from seed.See pics of plants all about 4 years old.

Welcome to the forum Blossfeldia.
I had a look at your web site and you have an impressive collection. I look forward to talking with you more in the future.

Hanazono - With Obregonias, do you think there is much of a difference in looks between a mature plant on its own roots and a grafted plant?
From what I've seen it's harder to tell than it is with something like a Turb. or Loph.

Crypto - That's the kind of standard of growth I'm aiming for. Beautiful plants by the way.
What are they on the bottom left? Eriosyce?